*{
    -fx-start-margin: 0;
    -fx-padding: 0;
    -fx-box-sizing: border-box;
}
#testButton{
    -fx-height: 100px;
    -fx-display: flex;
    -fx-align-items: center;
    -fx-justify-content: center;
    -fx-background-color: rgb(243, 239, 8);
}

